private void ClearMeanings() // clear Meanings list
{
if (Meanings != null && Meanings.Count > 0)
{
Meanings.Clear();
}
}
public MainWindowViewModel()
{
this.ClearSearchCommand = new DelegateCommand(() => Keyword = string.Empty);
this.LoadSettingCommand = new DelegateCommand(() => LoadSetting());
this.SaveSettingCommand = new DelegateCommand(() => SaveSetting());
this.TextBoxEnterKeyEventCommand = new DelegateCommand <string>(async(keyword) =>
await Task.Run(async() =>
{
if (string.IsNullOrEmpty(keyword))
{
return;
}
Result result = await GetResult(keyword);
DispatchService.Invoke(() =>
{
Meanings.Clear();
ScrollToTop?.Invoke();
if (result != null && result?.Meanings?.Count > 0)
{
Meanings.AddRange(result.Meanings);
}
else
{
meanings.Add(new Meaning {
Word = $"未找到 (´；ω；`)"
});
}
});
}));
}